Die tube directional bending processing equipment based on automobile cover

Abstract

The present invention belongs to the technical field of automobile stamping forming auxiliary equipment, and discloses mold tube directional bending processing equipment based on automobile covering parts, comprising: a shell body, provided with an annular track, the annular track comprising a clamping section and a relaxation section smoothly connected to each other; a main bending wheel, rotatably mounted on the shell body, and the axis of the main bending wheel is located on the center of the circle of the clamping section; a slave bending wheel, slidably arranged in the annular track, and the slave bending wheel cooperates with the main bending wheel to clamp one end of the mold tube in the clamping section, and moves away from the main bending wheel and releases the mold tube in the relaxation section; a connecting rod, whose two ends are respectively connected to the main bending wheel and the slave bending wheel; and a limiting device, mounted on the shell body, the limiting device comprising a first state for limiting the other end of the mold tube, and a second state for releasing the other end of the mold tube; the present invention can realize automatic removal of the bent mold tube and resetting of the bending mechanism, thereby better improving the efficiency of workers.

Description

Technical Field

[0001] The present invention relates to the technical field of automotive stamping forming auxiliary equipment, and particularly to a die tube directional bending processing equipment based on automotive body panels. Background Art

[0002] During the stamping forming process of automotive body panels, due to the small material thinning rate and poor rigidity of the panels, several exhaust holes are usually opened in the lower die to enable the automotive body panels to maintain a good exhaust state during the pressing process between the upper and lower dies, thereby reducing the defective rate of the drawn parts on the surface of the components. The existing die exhaust pipes (hereinafter referred to as die tubes) for automotive body panels usually have a semi-circular bending portion at one end far from the lower die to prevent dust from entering the die cavity from the exhaust pipe and falling on the surface of the components, thus affecting the external surface quality of the automotive body panels.

[0003] However, since the die tubes (metal tubes) of automotive body panels are specially made with a small pipe diameter and a short pipe body, conventional bending equipment is inconvenient for bending processing; if workers use pliers to bend by experience, it is time-consuming and laborious, increasing the labor intensity of workers, and it is also easy to occur the situation that the bending angles of the die tubes are inconsistent. For the existing automotive body panel exhaust pipe bending processing device, after each directional bending of the die tube, not only does the worker need to manually remove the bent die tube, but also manually reset the bending mechanism, resulting in low work efficiency of the worker. Summary of the Invention

[0004] Aiming at the defects in the prior art, the present invention provides a die tube directional bending processing equipment based on automotive body panels to automatically remove the bent die tube and reset the bending mechanism, thereby better improving the efficiency of workers.

[0005] The die tube directional bending processing equipment based on automotive body panels includes:

[0006] A housing provided with an annular track, the annular track including a clamping section and a slack section that are smoothly connected to each other, the diameter of the clamping section being smaller than that of the slack section;

[0007] A main bending wheel rotatably installed on the housing, and the axis of the main bending wheel being located at the center of the circle of the clamping section;

[0008] A secondary bending wheel slidably disposed in the annular track, and the secondary bending wheel clamping one end of the die tube in cooperation with the main bending wheel in the clamping section and moving away from the main bending wheel and releasing the die tube in the slack section;

[0009] A connecting rod with its two ends respectively connected to the main bending wheel and the secondary bending wheel, and the connecting rod being configured to be able to expand and contract to match the change in the distance between the secondary bending wheel and the main bending wheel; and

[0010] A limiting device is installed on the housing. The limiting device includes a first state for limiting the other end of the die tube and a second state for releasing the other end of the die tube.

[0011] Preferably, the main bending wheel is a sector wheel, and the central angle of the main bending wheel is the same as that of the clamping section.

[0012] Preferably, the connecting rod includes a first rod body and a second rod body. The first rod body is connected to the main bending wheel, and the second rod body is connected to the secondary bending wheel; the first rod body and the second rod body can approach or move away from each other to achieve telescoping.

[0013] Preferably, the first rod body and the second rod body are slidably inserted; or

[0014] The first rod body and the second rod body are connected by an elastic member.

[0015] Preferably, the limiting device is installed on the housing in a liftable manner. When the limiting device rises to abut against the side wall of the die tube, it cooperates with the main bending wheel to form the first state. When the limiting device descends to separate from the side wall of the die tube and releases the cooperation with the main bending wheel, it forms the second state.

[0016] Preferably, the limiting device includes a limiting wheel and a telescopic rod installed below the limiting wheel; the limiting wheel is lifted and lowered to adjust its relative height with respect to the die tube, and the bottom of the telescopic rod is installed at the bottom of the housing.

[0017] Preferably, the side walls of the main bending wheel and the secondary bending wheel are both concave arc surfaces, and the concave radian of the arc surface fits the die tube.

[0018] Preferably, it further includes a driving device, which is installed inside the housing and connected to the axis of the main bending wheel.

[0019] Preferably, the driving device includes a first bevel gear, a second bevel gear and a rotating rod; the first bevel gear is sleeved on the rotating shaft at the axis of the main bending wheel, the second bevel gear is arranged in cooperation with the first bevel gear, and it is sleeved on one end of the rotating rod, and the other end of the rotating rod extends to the outside of the housing.

[0020] Preferably, the driving device is a driving motor, and the output shaft of the driving motor is connected to the rotating shaft at the axis of the main bending wheel through a coupling.

[0021] The beneficial effects of the present invention are:

[0022] 1. By the coordinated arrangement of the bending wheel, the main bending wheel and the limiting device, the die tube is bent. The arrangement of the clamping section and the slack section in the annular track enables the automatic clamping or loosening of the die tube by the bending wheel, thereby achieving the directional bending of the die tube and controlling the bending angle. In addition, the arrangement of the annular track also facilitates the resetting of the main bending wheel and the secondary bending wheel and the picking of the bent die tube, thus improving the processing efficiency of the processing equipment and reducing the labor intensity of workers.

[0023] 2. Through the arrangement of the connecting rod, when the secondary bending wheel moves along the track, the diameter of the secondary bending wheel during the movement in the clamping section and the slack section can be automatically adjusted, thereby realizing the automatic "clamping" or "slackening" of the die tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the specific embodiments of the present invention, the drawings required for the specific embodiments or the description of the prior art will be briefly introduced below. In all the drawings, the components or parts are not necessarily drawn to actual scale.

[0025] Figure 1 Top view of the overall structure of the present invention (initial state);

[0026] Figure 2 Top view of the overall structure of the present invention (bent state);

[0027] Figure 3 Front cross-sectional view of Embodiment 1 of the present invention;

[0028] Figure 4 Partial cross-sectional view at A in Embodiment 1 of the present invention;

[0029] Figure 5 Partial cross-sectional view at A in Embodiment 2 of the present invention;

[0030] Figure 6 Front cross-sectional view of Embodiment 3 of the present invention;

[0031] Figure 7 Front cross-sectional view of Embodiment 3 of the present invention (limiting device not shown);

[0032] Reference Signs:

[0033] 1 - housing, 11 - track, 111 - clamping section, 112 - slack section, 12 - support base, 13 - support rod, 14 - support plate;

[0034] 2 - main bending wheel;

[0035] 3 - secondary bending wheel;

[0036] 4 - connecting rod, 41 - first rod body, 42 - second rod body, 43 - elastic member;

[0037] 5 - Limiting device, 51 - Limiting wheel, 52 - Telescopic rod, 53 - Slide block, 54 - Fixed sleeve;

[0038] 6 - Driving device, 61 - Driving motor, 62 - First bevel gear, 63 - Second bevel gear, 64 - Rotating rod, 65 - Rotating handle;

[0039] 7 - Die tube. Specific embodiments

[0040] Hereinafter, embodiments of the technical solution of the present invention will be described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and thus are only examples and cannot be used to limit the protection scope of the present invention.

[0041] Hereinafter, embodiments of the technical solution of the present invention will be described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and thus are only examples and cannot be used to limit the protection scope of the present invention.

[0042] Embodiment 1:

[0043] A die tube 7 directional bending processing device for automotive body panels includes a housing 1, a main bending wheel 2, a secondary bending wheel 3, a connection assembly, and a limiting device 5.

[0044] Please refer to Figure 1 and Figure 2 , the housing 1 is provided with an annular track 11, and the annular track 11 includes a clamping section 111 and a slack section 112 that are smoothly connected to each other. The diameter of the clamping section 111 is smaller than that of the slack section 112. Specifically, the bending angle of the bent part of the die tube 7 is usually between 140 degrees and 160 degrees, so the central angle of the clamping section 111 is set between 140 degrees and 160 degrees. It can be understood that the smooth connection between the clamping section 111 and the slack section 112 is to facilitate the movement of the secondary bending wheel 3 between the clamping section 111 and the slack section 112.

[0045] The main bending wheel 2 is rotatably installed on the housing 1, and the axis of the main bending wheel 2 is located at the center of the clamping section 111. Specifically, the main bending wheel 2 is installed inside the annular track 11.

[0046] In an embodiment, the main bending wheel 2 is a sector wheel, and the central angle of the main bending wheel 2 is the same as that of the clamping section 111. It can be understood that when the die tube 7 completes directional bending and is in a freely movable state, the main bending wheel 2 can continue to rotate until its sector arc surface is completely separated from the die tube 7. At this time, when the secondary bending wheel 3 pushes the die tube 7 in the tangential direction, the die tube 7 will not be stuck by the main bending wheel 2 because it is completely separated from the main bending wheel 2, thus facilitating the taking of the die tube 7.

[0047] Please refer to Figure 3 , in one embodiment, the side wall of the main bending wheel 2 is an inwardly concave arc surface, and the inward concave radian of the arc surface fits the die tube 7.

[0048] In one embodiment, a heating resistance wire can be installed on the inner wall of the main bending wheel 2 to heat the die tube 7. This can not only reduce the bending pressure when the die tube 7 is bent to make its forming more stable, but also enhance the plasticity of the die tube 7 and prevent it from cracking when deformed.

[0049] The secondary bending wheel 3 is slidably arranged in the annular track 11. At the clamping section 111 of the annular track 11, the secondary bending wheel 3 cooperates with the main bending wheel 2 to clamp one end of the die tube 7, and at the relaxation section 112, it is away from the main bending wheel 2 and releases the die tube 7. Specifically, when the secondary bending wheel 3 is at the clamping section 111, the die tube 7 is clamped between the main bending wheel 2 and the secondary bending wheel 3, and thus rotates with the two to achieve directional bending; when the secondary bending wheel 3 is at the relaxation section 112, the distance between the main bending wheel 2 and the secondary bending wheel 3 is greater than the diameter of the die tube 7, so the die tube 7 is no longer clamped, and at this time, the directional bending process of the die tube 7 is completed.

[0050] Please refer to Figure 7 , in one embodiment, the side wall of the secondary bending wheel 3 is an inwardly concave arc surface, and the inward concave radian of the arc surface fits the die tube 7.

[0051] In one embodiment, a heating resistance wire can be installed on the inner wall of the secondary bending wheel 3 to heat the die tube 7. This can not only reduce the bending pressure when the die tube 7 is bent to make its forming more stable, but also enhance the plasticity of the die tube 7 and prevent it from cracking when deformed.

[0052] Please refer to again Figure 1 and Figure 2 , the connecting rod 4, the two ends of which are respectively connected to the main bending wheel 2 and the secondary bending wheel 3, and the connecting rod 4 is configured to be able to expand and contract to match the change in the distance between the secondary bending wheel 3 and the main bending wheel 2.

[0053] Please refer to again Figures 1 to 7 , in one embodiment, the connecting rod 4 includes a first rod body 41 and a second rod body 42. The first rod body 41 is connected to the main bending wheel 2, and the second rod body 42 is connected to the secondary bending wheel 3; the first rod body 41 and the second rod body 42 can approach or move away from each other to achieve expansion and contraction.

[0054] Please refer to again Figure 4 , in one embodiment, the first rod body 41 and the second rod body 42 are slidably inserted. Specifically, the part of the first rod body 41 connected to the second connecting rod 4 is hollow, and a chute is opened inside it, and the second rod body 42 is slidably connected to the chute.

[0055] Please refer to again Figure 3 and Figure 6, a limiting device 5 is movably mounted on the housing 1. The limiting device 5 includes a first state and a second state. When the limiting device 5 is in the first state, it cooperates with the main bending wheel 2 to clamp the die tube 7 in the horizontal direction. When the limiting device 5 is in the second state, it moves away from the main bending wheel 2 and releases the die tube 7.

[0056] In one embodiment, the limiting device 5 is mounted on the housing 1 in a liftable manner. When the limiting device 5 rises until it abuts against the side wall of the die tube 7, it cooperates with the main bending wheel 2 to form the first state. When the limiting device 5 descends until it separates from the side wall of the die tube 7 and releases the cooperation with the main bending wheel 2, the second state is formed. Specifically, in the first state, the die tube 7 is located between the limiting device 5 and the main bending wheel 2, so that it cannot move in the horizontal direction, but can move in the feeding direction (longitudinal direction) of the die tube 7, thus facilitating directional bending. In the second state, the limiting device 5 no longer cooperates with the main bending wheel 2, so that the die tube 7 is in a freely movable state, thus facilitating material taking.

[0057] In one embodiment, the limiting device 5 includes a limiting wheel 51 and a telescopic rod 52 installed below the limiting wheel 51. The limiting wheel 51 moves up and down to adjust its relative height with respect to the die tube 7, and the bottom of the telescopic rod 52 is mounted on the inner bottom wall of the housing 1. Specifically, the limiting wheel 51 is rotatably connected to the telescopic rod 52, so as to reduce the friction force between the limiting wheel 51 and the die tube 7, facilitate the feeding of the die tube 7 and reduce the loss during the processing of the die tube 7. It can be understood that for the convenience of control, the telescopic rod 52 can adopt an electric telescopic rod 52 or other telescopic components.

[0058] In one embodiment, the limiting device 5 further includes a fixed sleeve 54 and a slider 53. The fixed sleeve 54 is hollow and installed on the support plate 14 inside the housing 1. The slider 53 is slidably installed in the hollow position of the fixed sleeve 54 along the lifting direction of the telescopic rod 52, and the upper end of the slider 53 is rotatably connected to the limiting wheel 51, and its lower end is connected to the telescopic rod 52. It can be understood that the setting of the fixed sleeve 54 and the slider 53 is to increase the stability of the limiting wheel 51, avoid it being damaged by the die tube 7 when bending the die tube 7, and thus extend the service life of the equipment.

[0059] In one embodiment, a heating resistance wire can be installed on the inner wall of the limiting wheel 51 to heat the die tube 7, which can not only reduce the bending pressure when the die tube 7 is bent, make the forming more stable, but also enhance the plasticity of the die tube 7 and prevent it from cracking when deforming.

[0060] The die tube 7 directional bending processing equipment for automotive body panels further includes a driving device 6, which is installed in the housing 1 and connected to the axis of the main bending wheel 2.

[0061] Please refer to again Figure 3, in one embodiment, the driving device 6 includes a first bevel gear 62, a second bevel gear 63 and a rotating rod 64; the first bevel gear 62 is sleeved on the rotating shaft at the center of the main bending wheel 2, the second bevel gear 63 is arranged in cooperation with the first bevel gear 62 and is sleeved on one end of the rotating rod 64, and the other end of the rotating rod 64 extends to the outside of the housing 1. Specifically, the rotating rod 64 is installed inside the housing 1 through a support rod 13, and a rotating handle 65 is also connected to the end of the rotating rod 64 extending out of the housing 1. It can be understood that the rotating handle 65 is L-shaped, which is convenient for the operator to control the rotating rod 64. In addition, anti-slip lines can be provided at one end of the rotating handle 65 in contact with the operator to avoid slipping.

[0062] Embodiment 2:

[0063] The difference between this embodiment and Embodiment 1 is:

[0064] Please refer to again Figure 5 , in one embodiment, the first rod body 41 and the second rod body 42 are connected by an elastic member 43. Specifically, both ends of the elastic member 43 are respectively connected to the first rod body 41 and the second rod body 42 along the direction in which the connecting rod 4 expands and contracts. It can be understood that when the slave bending wheel 3 transitions to the slack section 112, the second connecting rod 4 can transition more smoothly under the elastic force of the elastic member 43.

[0065] In one embodiment, the elastic member 43 can be a spring or other components with elastic reset function.

[0066] Embodiment 3:

[0067] The difference between this embodiment and Embodiment 1 is:

[0068] Please refer to again Figure 6 and Figure 7 , in one embodiment, the driving device 6 is a driving motor 61, and the output shaft of the driving motor is connected to the rotating shaft at the center of the main bending wheel 2 through a coupling. Specifically, the motor is fixedly installed on the support seat 12 inside the housing 1. It can be understood that a speed reduction mechanism (a conventional speed reduction mechanism is sufficient) can also be installed between the motor and the main shaft to facilitate controlling the speed of the directional bending of the die tube 7. Specific implementation method:

[0070] First, adjust the main bending wheel 2 and the secondary bending wheel 3 to the initial state (i.e., the secondary bending wheel 3 is just between the relaxation section 112 and the clamping section 111, facilitating the feeding of the die tube 7); then place any die tube 7 to be processed longitudinally between the main bending wheel 2 and the secondary bending wheel 3, such that the front end of the die tube 7 slightly extends beyond the secondary bending wheel 3; then adjust the limiting device 5 so that the limiting wheel 51 rises to no lower than the diameter of the die tube 7. At this time, the die tube 7 is still clamped between the limiting wheel 51 and the main bending wheel 2 (the die tube 7 can only move longitudinally at this time and cannot move laterally). To improve the processing efficiency of the directional bending of the die tube 7, each die tube 7 to be processed can be set to be fed intermittently. After the previous die tube 7 is processed, it then enters the processing equipment for processing.

[0071] Secondly, start the heating resistance wires on the inner walls of the main bending wheel 2, the secondary bending wheel 3, and the limiting wheel 51 to heat the die tube 7. Then start the driving device 6, and the main bending wheel 2 and the secondary bending wheel 3 rotate; when the secondary bending wheel 3 moves to the clamping section 111, it will clamp the die tube 7 and then drive the die tube 7 to move. At this time, under the clamping of the main bending wheel, the secondary bending wheel 3, and the limiting wheel 51, the die tube 7 starts to bend.

[0072] Finally, when the secondary bending wheel 3 transitions to the relaxation section 112, the secondary bending wheel 3 releases the clamping of the die tube 7. At this time, the die tube 7 has completed the directional bending. When the secondary bending wheel 3 continues to move within the annular track 11 to the part where the die tube 7 is restricted by the limiting wheel 51, the telescopic rod 52 drives the limiting wheel 51 to descend until it does not contact the side wall of the die tube 7. At this time, the secondary bending wheel 3 will push the die tube 7 to move along the tangent direction, thereby pushing the die tube 7 out of the processing area of its directional bending. Since the central angle of the bent portion of the die tube 7 is less than 180 degrees, when the die tube 7 is pushed along the tangent direction, the die tube 7 will not be stuck by the main bending wheel 2 and can be smoothly pushed out of the processing area. After the die tube 7 is pushed out of the processing area, the secondary bending wheel 3 continues to move to the initial state, thereby completing its reset with the main bending wheel 2 and waiting to process the next die tube 7.

[0073] The above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered within the scope of the claims and the description of the present invention.

Claims

1. The mold tube directional bending processing equipment based on automobile cover parts is characterized by: include: The housing is provided with an annular track, wherein the annular track comprises a clamping section and a relaxation section which are smoothly connected to each other, and the diameter of the clamping section is smaller than the diameter of the relaxation section; A main bending wheel is rotatably mounted on the housing, and the axis of the main bending wheel is located at the center of the clamping section; A secondary bending wheel is slidably disposed in the annular track, and the secondary bending wheel cooperates with the primary bending wheel to clamp one end of the mold tube in the clamping section, and moves away from the primary bending wheel and releases the mold tube in the relaxation section; A connecting rod, two ends of which are respectively connected to the main bending wheel and the slave bending wheel, and the connecting rod is configured to be able to extend and retract to match the change of the distance between the slave bending wheel and the main bending wheel; The connecting rod comprises a first rod body and a second rod body, the first rod body is connected to the main bending wheel, and the second rod body is connected to the slave bending wheel; the first rod body and the second rod body can move closer to or farther from each other to achieve telescoping; The first rod body and the second rod body are slidably plugged; or The first rod body and the second rod body are connected by an elastic member; A limiting device is installed on the housing, wherein the limiting device includes a first state for limiting the other end of the mold tube and a second state for releasing the other end of the mold tube; and The limiting device can be installed on the shell in a liftable manner. When the limiting device rises to the point where it abuts against the side wall of the mold tube, it cooperates with the main bending wheel to form the first state. The limiting device descends to the point where it is separated from the side wall of the mold tube and releases the cooperation with the main bending wheel to form the second state.

2. The mold tube directional bending processing equipment based on automobile cover according to claim 1 is characterized in that: The main bending wheel is a fan-shaped wheel, and the center angle of the main bending wheel is consistent with the center angle of the clamping section.

3. The directional bending processing equipment for mold tubes based on automobile covering parts according to claim 1 is characterized in that: The limiting device comprises a limiting wheel and a telescopic rod installed below the limiting wheel; the limiting wheel is raised and lowered to adjust its relative height with the mold tube, and the bottom of the telescopic rod is installed at the bottom of the shell.

4. The directional bending processing equipment for mold tubes based on automobile covering parts according to claim 1 is characterized in that: The side walls of the main bending wheel and the secondary bending wheel are both in the form of concave arc surfaces, and the concave curvature of the arc surfaces fits the mold tube.

5. The directional bending processing equipment for mold tubes based on automobile covering parts according to claim 1 is characterized in that: It also includes a driving device, which is installed in the shell and connected to the axis of the main bending wheel.

6. The directional bending processing equipment for mold tubes based on automobile covering parts according to claim 5 is characterized in that: The driving device includes a first bevel gear, a second bevel gear and a rotating rod; the first bevel gear is sleeved on the rotating shaft at the axis of the main bending wheel, the second bevel gear is arranged in cooperation with the first bevel gear, and is sleeved on one end of the rotating rod, and the other end of the rotating rod extends to the outside of the shell.

7. The directional bending processing equipment for mold tubes based on automobile covering parts according to claim 5 is characterized in that: The driving device is a driving motor, and the output shaft of the driving motor is connected to the rotating shaft at the axis center of the main bending wheel through a coupling.

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